28227901

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 32940000

約数和(自身を除く): 4712099

約数列:

[1, 13, 19, 59, 149, 169, 247, 767, 1121, 1937, 2831, 3211, 8791, 9971, 14573, 25181, 36803, 114283, 167029, 189449, 478439, 1485679, 2171377, 28227901]

約数ペア:

[(1, 28227901), (13, 2171377), (19, 1485679), (59, 478439), (149, 189449), (169, 167029), (247, 114283), (767, 36803), (1121, 25181), (1937, 14573), (2831, 9971), (3211, 8791)]